We don’t normally talk about the people who are doing demos at our conferences in advance, because we like to keep a few surprises behind the curtain. And we’ll definitely have some of those next week, too.

But in this case, we figured it was worth pointing out. We reached out to Bluefin and its founder Deb Roy a while back, and now it turns out that his company has become Twitter’s most expensive acquisition. How about that?

We’re pleased we get to show you the kind of thing that Bluefin can do. If you want to join us next week, head here.